Makes ProgressBar.increment() method thread safe

.travis.yml

@@ -1,10 +1,15 @@
+dist: trusty
 sudo: false
 language: python
 python:
     - "3.4"
     - "3.5"
 addons:
     postgresql: "9.3"
+    sonarqube:
+      token: "8ac245c4c882063ecd40896cae13e028efd8681d"
+jdk:
+  - oraclejdk8
 install:
     - "pip install -r test_requirements.txt"
     - "pushd app/ && python setup.py develop && popd"
@@ -18,3 +23,5 @@ before_script:
 script:
     - "flake8 --config flake8.cfg app/"
     - "app/pulp/app/db-reset.sh && python manage.py test app"
+    - sonar-scanner -Dsonar.github.pullRequest=$TRAVIS_PULL_REQUEST -Dsonar.github.repository=$TRAVIS_REPO_SLUG -Dsonar.analysis.mode=preview -Dsonar.github.oauth=08368a91e061e61371abf238284ba47a343fc09c
+

app/pulp/app/models/progress.py

@@ -4,9 +4,9 @@
 from gettext import gettext as _
 import logging
 
-from django.db import models
+from django.db import models, transaction
 
-from pulp import tasking
+from pulp.tasking import util
 from pulp.app.models import Model, Task
 
 _logger = logging.getLogger(__name__)
@@ -66,7 +66,7 @@ def save(self, *args, **kwargs):
         kwargs (dict): keyword arguments to be passed on to the real save
         """
         if self.task_id is None:
-            self.task_id = Task.objects.get(id=tasking.get_current_task_id())
+            self.task_id = Task.objects.get(id=util.get_current_task_id())
         super(ProgressReport, self).save(*args, **kwargs)
 
     def __enter__(self):
@@ -193,10 +193,13 @@ def increment(self):
         This will increment and save the self.done attribute which is useful to put into a loop
         processing items.
         """
-        self.done += 1
-        if self.done > self.total:
-            _logger.warning(_('Too many items processed for ProgressBar %s') % self.message)
-        self.save()
+        with transaction.atomic():
+            self.done = models.F('done') + 1
+            self.save()
+        np = ProgressBar.objects.get(id=self.id)
+        print('done = ' + str(np.done))
+        #if self.done > self.total:
+        #    _logger.warning(_('Too many items processed for ProgressBar %s') % self.message)
 
     def iter(self, iter):
         """

sonar-project.properties

@@ -0,0 +1,5 @@
+sonar.projectKey=org.redhat:pulp
+sonar.projectName=Pulp
+sonar.projectVersion=3.0
+sonar.sources=.
+